Wash the potatoes, cover and cook in plenty of boiling water for about 15 minutes. Drain the potatoes, rinse under cold water and peel. Let the potatoes cool down for about 1 hour
Wash the beans, drain well and clean. Cut the beans diagonally into pieces. Wash the savory and shake dry. Cover the beans and savory and cook in little boiling salted water for 8-10 minutes. Boil eggs for about 10 minutes, rinse with cold water and let them cool down. Pour the beans onto a sieve, drain and remove the savory
Drain the tuna. Peel and finely dice the shallots. Wash the chives, shake dry and cut into small rolls. Mix vinegar, mustard, about 1 teaspoon salt, pepper and sugar. Finally, stir in the oil. Remove 3 tablespoons of vinaigrette and set aside. Mix the rest of the mustard vinaigrette, potatoes and lukewarm beans in a large bowl. Stir in chives, except for a little bit for sprinkling, and tuna. Let the salad stand for at least 1 hour
Peel and halve the eggs. Season salad with salt and pepper and arrange in a bowl. Spread the egg halves on the salad and drizzle with the remaining vinaigrette. Sprinkle with chives
waiting time approx. 1 1/2 hours